Car coupling and draft-yoke connection



E. GEORGE, IR. CAR COUPLING AND DRAFT YOKI CONNECTION.

APPLICATION FILED JUNE4, IQZO in p" IOL IPzLIenIeoI' DE@ 69 IDQL IIEINUHGENGE, l N1., F IPFTTSBUNGH, PENNSYLVANIA., ASSIGNUR TO THE MCONWAY itTRLFY UUMJPAN'EZ', 0F FlITTSNUNJGrJEf, PENNSYLVANIA, A CORJE'GRATKON OFPENN- SYLVANIN.

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`Application filed lune t,

To all whom t may concern:

Be 1t known that ll, ENoor-r GEORGE, J r.,

a citizen of the llnited States, residing at in the art to which' itappertains to make ment.

`and wedg'ing and use the same.

My invention relates to a car coupler and draft yoke connection forrailway draft appliances, and is designed to afford simple, strong andefficient means permitting couplers of the type primarily intended to beconnected to the draft yoke without capability of lateral swingingmovement to be pivotally connected to' the draft yoke so as to be adated to have such a swinging moveenerally stated, the 4preferredembodiment of my invention by which this object is accomplished involvesa coupler Ahaving a stem, a draft yoke which is provided at its forwardend with alined pivot lugs, and a memberintermediate of the cou-. plerand oke formed with a centrally disposed soc et for receiving the rearend of the coupler stem and alsoprovided with spaced slotted arms whichreceive the coupler stem between4 them, the rear end of the intermediatemember having pivot lugs which mesh with those of the yoke and which areadapted to receive a pivot pin connecting the intermediate member to theyoke, key means, which fextend throu h the slots of the coupler stem andinterme iate member, being provided for attaching the coupler to saidintermediate member.

ln the drawings illustrating the invention, the scope whereof ispointedout in the claims, i

Figure 1l is a plan view of a draft appliance embodying the invention,the forward end of the coupler and the rear end ofthe draft yoke beingbroken away.,

Fig. 2 is a side elevation of the construction shown in Fig. 1.

Fig. 3 is a horizontal section on the line 3-1-3, Fig. 2, the key meansbeing shown in an. P Fig. l isa detail front elevation of a preferredform of means for retaining in as- Specication of Letters Patent.

ieao. serial no. stator.

sembled position the downwardly removable pivot pin by which theintermediate member is pivotally connected to the yoke.

ln the drawings, 1 is the stem of af car coupler and 2 is a draft yoke.The stern of the coupler is provided near its rear end with atransversely extending slot 3 which is adapted to receive key means forconnecting the coupler to the intermediate member a of the device.

'llhe yoke is provided with longitudinally extending arms 5 which arespaced apart to receive a cushioning unit (not shown) in the well knownmanner. At their forward ends the arms of the yoke are fashioned withpivot lugs 6 which preferably are formed with flat transverselyextending front and rear faces and whose perforations are adapted toreceive a vertically extending pivot pin 7; rlllhe rear faces S of thesepivot lugs Patented Nec. ,6, i921.

are adapted to engage the forward end of the cushioning unit carriedbetween'the yoke arms 5.

The intermediate member 4C is preferably formed with a centrallydisposed forwardly opening socket 9 which receives the rear end of thecoupler stem l, and at its rear end and in horizontal alinement with thesocket said intermediate memberis also preferably provided with aperforated lug 1() which extends between the pivot lugs 6 of the yokeand whose'rear face 11, like the faces 8 of the yoke' pivot lugs, isadapted to engage.- the forward end of the cushioning unit. At the baseor inner end of the socket 9 the intermediate member l is provided witha wall or face l2` against which the rear end of the coupler stem y1 isadapted to bear, so that bufling shocks received by the car couler aretransmitted therefrom to the cushioning unit ldirectly through thecentrally disposed lug 10. ln addition to the pivot lug l0 the member 4is preferably provided at its rear end with pivot lugs 13 vwhich arespaced directly' from the lug 10 sufliciently to receive the pivot lug64 at the forward end of the draft yoke, the rear faces of theintermediate member between the central lug 10 and the outer pivot lugs13 being beveledto afford clearance for they flat forward face ofW'thepivot lugs 8 of the yok'e when the coupler swings laterally. As the`downwardly removable pivot pin 7 extends through the outer pivot lugs13 as well as lil@ l spending tothe transversely extending slot` central4pivot lug of the member e, the pin is placed in quadruple shear andthus offers great resistance to failure.

T he intermediate member -1 has at its forward end oppositely disposedspaced arms 1-1 which receive the'eoupler stem between them and whichhave alined slots 15 correwhich respectively overlap the outer faces ofthe slot-ted arms 14. at their forward ends, while. the adjustable wedge17 is formed at one end with a.threaded stem 19 for receiving a nut `2()which bears against the outer face `of the adjacent arm 14 of theintermediate member and which by being r0- tated serves to adjust theposition of the wedge 17, thereby forcingthe `wedge 416 forwardly so asto prevent longitudinal movement of the coupler. stem 1 with respect tothe intermediate member 4 and at the same time coupling the slotted arms14 togetherv in a manner 4resisting their spreading.

As a convenient means for retaining the pivot pin 7 in assembledposition, it is pretion between its ends b reason of which it' ferred`to provide the lower pivot lug 13 of the intermediate member with a airof downwardly extending lugs 21 which are disposed uponopposite sides ofthe pivot pin opening of theY lug ,13. Pivotally mounted on the lugs 21and extending therebetween is a latch bar 22 which is adapted to extendunder and support the pivot pin 7. The latch bar 22 has an eccentricpornormally tends under t e influence of gravity to remain in theassembled position illustrated'in' Fig. 4. In order to provide for theassembly and removal of the latch bar 22, one of the supporting lugs 21is fashioned with a horizontally extending slot 23 through which themember 22 may be inserted or withdrawn. The companion lug 21 is simplyLesser/je@ provided with a circular aperture of suitable size to receivethe cylindrical end er pintle of the latch bar 22.

1. in a coupler and yoke connection, the combination with a couplerhaving a stem,

of a yoke, a member intermediate of said yoke and coupler provided withspaced arms adapted to receive the stem of said coupler between them,means for pivotally connecting said intermediate member to said yoke,and means for connecting the stem of said coupler to said intermediatemember, said last named means being adapted to engage said spaced armsand to resist lateral spreading thereof'.

2. In a coupler and yoke connection` the combination with a couplerhaving a slotted stem, of a draft yoke, a member intermediate of saidcoupler and yoke and pivotally connected to the latter, and ke'v meansfor connecting said coupler and intermediate member, said intermediatemember being provided at its forward end with oppositely disposedslotted arms adapted to receive the stem of said coupler between them,and said key meanscomprising a pair of wedge members extending into saidslots of said coupler stem and intermediate member, one of said wedgemembers having lugs which iespectively overlap the outer faces of saidslotted arms at the forward ends of said arms.

3. In a coupler and yoke connection, the combination with a couplerhaving a4 slotted stem, of a draft yoke, a member intermediate of saidcoupler and lyoke and pivotally conncted to the latter, and key meansfor connecting said coupler and intermediateI member, said intermediatemember being provided at its forward end with oppo- `sitely vdisposedslotted portions adapted to receive the coupler stem between them, and

said key means eomprising a wedge member extending through sai stem andintermediate member and havin atA its ends forwardly extending lugs emracing the said slotted portions of the intermediate member ybetweenthem, an adjustable wed e member engaging the rear face of said rstnamed wedge and extending through said coupler stem and intermediatemember, and an adjusting nut interposed betweensaid intermediate memberand said adjustable wedge.

1n testimony whereof I aix my signature.

ENOCH GEORG JR.

